Things You Might Not Know: About Passwords...
[https://www.youtube.com/watch?v=yoMOAIzBSpY#t=156]YouTube LinkYouTube, Facebook and other sites for which you may have passwords do not know your password. How, then, do they verify it? Internet magic! Tom Scott explain...
https://www.neatorama.com/2014/08/05/Things-You-Might-Not-Know-About-Passwords/
